You are bidding on a CD disk containing Service Manuals for the Bulova Accutron Series 214 and 218 watches. Also included is a bonus 35-page "Facts about Accutron" booklet. All of these manuals are provided in Adobe PDF eBook format on a CD, mailed to your home address. Shipping is FREE to the U.S.A! Not sure what an "eBook" is? See a thorough description at the end of this page. Bulova's "Accutron" watches, first sold in October 1960, use a 360 hertz tuning fork instead of a balance wheel as the timekeeping element. The inventor, Max Hetzel, was born in Basel, Switzerland, and joined the Bulova Watch Company of Bienne, Switzerland, in 1948. The tuning fork was powered by a one-transistor electronic oscillator circuit, so the Accutron qualifies as the first "electronic watch". Instead of the ticking sound made by mechanical watches, the Accutron had a faint, high pitch hum which came from the vibrating tuning fork. A forerunner of modern quartz watches which also keep time with a vibrating resonator, the Accutron was guaranteed to be accurate to a minute per month, or 2 seconds per day, considerably better than mechanical watches of the time. The tuning fork movement was a horological revolution. Previously, electronically regulated timepieces were limited to some scientific instruments, being too large for a personal watch. The Accutron was also the first wristwatch precise enough to qualify for U.S. railroad certification. A wristwatch regularly moves in all possible directions, as opposed to a pocket watch which spends the vast majority of its life either mostly vertical or mostly horizontal. Prior to the Accutron, that movement affected the precision of all wristwatches to a degree which precluded railroad certification, even for the best made and most expensive chronometer certified wristwatches. The ability to legitimately claim the Accutron as the most precise wristwatch in existence was a tremendous boon for the company. CONTENTS SERIES 214 39 pages Special tools and Equipment Diagnosis Special Points Procedures for Testing Procedures for Disassembly Cleaning Oiling Procedures for Reassembly Regulation Following Repair Information and Hints for the ACCUTRON Repairman Parts List CONTENTS SERIES 218 52 pages SERVICING PROCEDURES REPAIR OF THE BASIC MOVEMENT REPAIR OF DATE MECHANISM IN 218D Not sure what an "eBook" is? The term 'eBook' simply means "electronic book", meant for viewing on your computer or other device. eBooks usually come in Adobe PDF format, as the one being offered in this auction. All that is required to read the eBook is a software program called Adobe Acrobat Reader, which will open PDF files. Most computers already have the Adobe Acrobat reader software already installed, but in the rare instance your computer may not have it, you can download the latest version for FREE at www.adobe.com. For viewing on a mobile device such as Kindle, iPhone, Droid, etc. you must have an 'app' installed which allows reading of PDF files. With an eBook, you can read books on your computer screen and zoom in on the text to make the words as big as you would like them to be to read comfortably! You can also go to any page or chapter in the book with just a few mouse clicks, even if the book has thousands of pages! You can also print out any or all pages you like at your convenience. With some eBooks, you even have the capability to copy and paste the text of the book into another computer file, instead of retyping by hand. These are just a few of the features and conveniences of having a book in electronic format. I will send this item by postal mail. Sending this item by email or by any other digital delivery method is not allowed and violates eBay policy.Don't forget, shipping is FREE! ...Due to recent changes in eBay policy, shipping prices have gone up considerably for these items. The cost to send ONE CD via First Class Mail is now over $3.00 (USA), but we still ship for FREE. Beware of others who charge more than this. They might be ripping you off...and laughing all the way to PayPal! ATTENTION EBAY: This book is has been verified and documented to be in the public domain, and is lawfully authorized for publication by us from the U.S. Library of Congress. No copyright laws have been violated. This listing complies with all eBay policies and regulations. This book is not a digitally delivered item or a compilation item. ««Click here to check out our other items on eBay»» Receive Our Email Notifications About New Items! ««Click here to Add Us to Your Favorite Sellers»» Thanks for looking and Happy Bidding! Feedback From Buyer Date/time Very nice, and quick shipping! A ++ Thanks!p**********2( 1043) 2020-04-02 02:53:26 good deal, as advertisedb*****5( 1044) 2020-03-06 18:14:41 I got my order. I recommend this seller. Thank you.s*******9( 1399) 2019-12-14 00:37:13 Goodi*************2( 24) 2019-10-23 19:13:13 Item received as described. Thank you!m********a( 627) 2019-10-03 13:53:33